public class MyControls {
	public static void main(String[] args) {

		Integer a = 100;
		Integer b = 200;
		Integer c = 300;
		Integer d = 500;
		Integer result;

		result = a;

		if (b > result)
			result = b;
		if (c > result)
			result = c;
		if (d > result)
			result = d;

		System.out.println(result);
	}
}
